CN205714010U - Outer flow passage box cupling - Google Patents
Outer flow passage box cupling Download PDFInfo
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- CN205714010U CN205714010U CN201620710231.6U CN201620710231U CN205714010U CN 205714010 U CN205714010 U CN 205714010U CN 201620710231 U CN201620710231 U CN 201620710231U CN 205714010 U CN205714010 U CN 205714010U
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- box cupling
- screw thread
- flow passage
- gathering sill
- outer flow
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Abstract
The utility model discloses a kind of outer flow passage box cupling, including box cupling body, the circumference of described box cupling body forms screw thread gathering sill towards sunken inside, described screw thread gathering sill is through to the two ends in box cupling body length direction, the vertical sectional shape of described box cupling body is rounded, and the circumference side of described box cupling body is curved.Screw thread gathering sill it is provided with on sucker rod, screw thread gathering sill makes box cupling body during movement, auxiliary sucker rod rotates, thus the impurity on oil pick-up tube tube wall is struck off, simultaneously by the rotation of box cupling, effectively active force is transferred on the periphery of oil pick-up tube, it is to avoid the problem only one side rubbed in pipeline, the problem i.e. avoiding eccentric wear.
Description
Technical field
This utility model relates to sucker rod accessory field, particularly to a kind of outer flow passage box cupling.
Background technology
Rod collar is a kind of part that sucker rod applies widely in the sucker rod pumping system of oil field, by this
Box cupling can realize the connection between sucker rod, makes the total length of sucker rod arrive the crude oil that the underground the most thousands of rice of hundreds of meters is deep
Layer.During oil pumper normally works, sucker rod action up and down reciprocatingly in beam hanger, and the diameter of box cupling is more than oil pumping
Bar, so the side of box cupling can rub with relevant inwall, collide, it is easy to cause the mill of rod collar and tube inner wall
Damage, thus cause sucker rod to fall off or the problem of leakage of oil.
In sucker-rod pumping system, whether straight well or inclined shaft, R a T is all relatively to transport in contact
Dynamic, therefore, between sucker rod and oil pipe, there is inevitably abrasion, particularly deep-well and inclined shaft, sucker rod is in oil pipe
It is easily bent, the problem that serious sucker rod abrasion oil pipe occurs, after producing abrasion, makes oil pipe and sucker rod not to use,
Causing oil well operation, oil well repair free period is short, increases operating cost, increases rod tube consumption, and the oil well off-time is many, decreases former
Oil yield.For avoiding the occurrence of oil pipe, the problem of sucker rod abrasion, frequently with oil pipe, oil-well tubing collar on oil recovery technique.Existing
Oil pipe, rod collar kind more, be typically all fixed on sucker rod to rigidity, be synchronized with the movement with sucker rod, due to
Be rigidity be fixed on sucker rod, therefore, box cupling quick abrasion occurs, protection oil pipe, sucker rod time short, oil pipe, oil pumping
Still there is heavy wear in pipe.
In prior art, notification number be " CN 2903341Y " patent document in disclose this box cupling structure, but
During use, this kind of box cupling can be good at clearing up blocking and the effect of surface impurity in oil pipe, but this kind of box cupling is up and down
During movement, this kind of box cupling resistance up and down is bigger, although to a certain extent, the problem of eccentric wear is understood
Determine, but the wear problem when moving up and down still highlights.
Utility model content
The outer flow passage box cupling of abrasion when the purpose of this utility model is to provide a kind of anti-eccentric wear and minimizing moves up and down.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of outer flow passage box cupling,
Including box cupling body, the circumference of described box cupling body forms screw thread gathering sill towards sunken inside, and described screw thread gathering sill runs through
To the two ends in box cupling body length direction, the vertical sectional shape of described box cupling body is rounded, the circumference of described box cupling body
Face is curved.
By using technique scheme, sucker rod being provided with screw thread gathering sill, screw thread gathering sill makes box cupling body exist
During movement, auxiliary sucker rod rotates, thus is struck off by the impurity on oil pick-up tube tube wall, passes through box cupling simultaneously
Rotation, effectively active force is transferred on the periphery of oil pick-up tube, it is to avoid only one side is rubbed in pipeline
Problem, the problem i.e. avoiding eccentric wear, simultaneously by by curved for rounded for the vertical sectional shape of box cupling body and all sides, subtracting
Lack the contact area between box cupling body and oil pick-up tube, further decrease rubbing between box cupling and oil pick-up tube medial wall
Wipe, decrease the abrasion that eccentric wear causes, simultaneously by decreasing the cross-sectional area of box cupling body, thus decrease sucker rod and exist
The resistance of motion in oil pick-up tube, facilitates sucker rod to move.
As preferably, radially cave in and form the spanner groove being oppositely arranged in the circumference side of described box cupling body.
By using technique scheme, because box cupling body is by being fixed between screw thread and sucker rod, and pump
Bigger axial force and radial force is born, if the position fastening effect connected is bad, it will cause rod fall on bar
Problem, and typically by spanner, box cupling body is fastened, but is fastened by this kind of mode, it will produce bigger
Chucking power, bigger abrasion can be produced in the circumference side of box cupling body, be provided by spanner groove, it is to avoid spanner is connecing
The abrasion of hoop body surface such that it is able to will be fixed between box cupling body and sucker rod, be provided by spanner groove simultaneously,
The contact area between box cupling body and oil pick-up tube sidewall can be reduced further, thus reduce abrasion.
As preferably, described spanner fluted shaft to the outward-dipping formation in two side spigot surface.
By using technique scheme, spigot surface serves convenient wrench and clamps the effect of spanner groove, it also avoid
Abrasion between spanner and spanner groove, is provided by spigot surface, can effectively insert in spigot surface by spanner, simplifies box cupling
Fixing of body；Impurity can also be scraped into pulling during sucker rod vertical direction moves by the face of being simultaneously directed to from oil pumping tube wall
Effect in hands groove.
As preferably, described screw thread gathering sill runs through spanner groove and arranges.
By using technique scheme, screw thread gathering sill runs through spanner groove and arranges, it is to avoid spanner groove is arranged far from spiral shell
The position of stricture of vagina gathering sill, it is to avoid be provided with too much groove on box cupling body, causes the structural strength of box cupling body to reduce, simultaneously
The impurity that the face that can be directed to is scraped in spanner groove is discharged along screw thread gathering sill.
As preferably, in described spanner groove, it is provided with abrasionproof part, the lateral surface of described abrasionproof part and the circumference of box cupling body
Side flushes, and described screw thread gathering sill runs through abrasionproof part and arranges.
By using technique scheme, it is provided by abrasionproof part, one, serves the work improving box cupling structural strength
With, it is to avoid sucker rod, during moving up and down, causes the problem that box cupling body occurs fracture;Its two, serve by anti-
The abrasionproof performance of mill part, is being susceptible to the effect of eccentric wear, is further enhancing the abrasionproof performance of box cupling body, and abrasionproof part can
Using the high material of price valency to make, it is to avoid box cupling body all uses this kind of material to make, and serves and reduces cost
Effect.
As preferably, in described spanner groove, it is provided with screwed hole, described abrasionproof part is provided with and corresponding threaded holes conjunction
Shoulder hole, is provided with the fixture coordinated with screwed hole in described shoulder hole.
By using technique scheme, screwed hole and shoulder hole cooperate, and serve and abrasionproof part is fixed on spanner
Effect in groove, in fixture is fed through shoulder hole simultaneously, serves effect fixing to abrasionproof part and spanner groove, prevents from sliding
During shifting, abrasionproof part generation sharp worn problem.
As preferably, the sidewall of described screw thread gathering sill is provided with fixing groove, is provided with automatically cleaning bullet in described fixing groove
Property block.
By using technique scheme, it is provided by fixing groove, serves effect automatically cleaning elastomer block fastened,
Avoiding automatically cleaning elastomer block to depart from from spanner groove, being provided by automatically cleaning elastomer block can dirty by inside tube wall
Striking off, serve the effect of cleaning oil pick-up tube tube wall, the self-cleaning property also by automatically cleaning elastomer block avoids impurity to pile up in place
In the screw thread gathering sill of automatically cleaning elastomer block.
As preferably, described automatically cleaning elastomer block flushes with the inwall of screw thread gathering sill.
By use technique scheme, it is to avoid automatically cleaning elastomer block after the impact by air pressure and fluid, automatically cleaning
Elastomer block falls off in fixing groove, by being flushed by the inwall of automatically cleaning elastomer block with screw thread gathering sill so that automatically cleaning
Elastomer block axially not affected by active force along box cupling body, it is to avoid automatically cleaning elastomer block falls off.
As preferably, described box cupling body is made up of high intensity, corrosion-resistant, rub resistance steel.
By using technique scheme, by using this kind of steel, it is ensured that have excellent in various underground working conditions
Good anti-corrosion, anti-wear performance, the adhesive wear generation stoping and having postponed between initial box cupling and tube inner wall.At (pressure release surface)
In friction process, transfer to the inwall of oil pipe to mill surface with sheet form, both reduced rubbing between box cupling and tube inner wall
Wipe coefficient, serve the effect of antifriction, prevent sharp wear as in the past in oil pipe the most to a certain extent, moreover it is possible to have
Effect ground and oil pipe are formed flour milling, alleviate oil pipe abrasion, serve the effect of protection tube inner wall.
In sum, this utility model has the advantages that on sucker rod and is provided with screw thread gathering sill, and screw thread guides
Groove makes box cupling body during movement, and auxiliary sucker rod rotates, thus is scraped by the impurity on oil pick-up tube tube wall
Remove, simultaneously by the rotation of box cupling, effectively active force is transferred on the periphery of oil pick-up tube, it is to avoid only to one in pipeline
Side carries out the problem rubbed, the problem i.e. avoiding eccentric wear, simultaneously by by rounded for the vertical sectional shape of box cupling body and
All sides are curved, decrease the contact area between box cupling body and oil pick-up tube, further decrease box cupling and oil pumping
Friction between pipe medial wall, decreases the abrasion that eccentric wear causes, simultaneously by decreasing the cross-sectional area of box cupling body, from
And decrease the sucker rod resistance of motion in oil pick-up tube, facilitate sucker rod to move.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is exploded perspective view of the present utility model；
Fig. 3 is the generalized section of screw thread gathering sill.
In figure, 1, box cupling body；11, screw thread gathering sill；2, spanner groove；21, spigot surface；22, abrasionproof part；31, screwed hole；
32, shoulder hole；33, fixture；41, fixing groove；42, automatically cleaning elastomer block.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
As it is shown in figure 1, a kind of outer flow passage box cupling, being elliptoid box cupling body 1 including cross section, box cupling body 1 is vertical
The shape in cross section is rounded, and box cupling body 1 is curved at the contour shape of cross section, and the two ends of box cupling body 1 are vertical simultaneously
Face, i.e. box cupling body 1 be by one by outwardly for the upper surface of the rectangle geometry of camber line that formed around relative with arc
Scan while carrying out rotating；Box cupling body 1 is made up of high abrasion, anticorrosive steel, and this kind of steel use our company Shen
A kind of steel of Application No. " 201210371921.x " please are made, and have excellent anti-corrosion, anti-wear performance, stop and postpone
The effect that adhesive wear between initial box cupling and tube inner wall occurs.
Even if as it is shown in figure 1, the circumference side of the curved surface box cupling body 1 of formation that camber line scans, at the circle of box cupling body 1
Cave inward on all sides formation screw thread gathering sill 11, and the quantity of screw thread gathering sill 11 is 3, and the two ends of screw thread gathering sill 11
Extend respectively to the two ends of box cupling body 1 length direction, and in running through setting.
As it is shown in figure 1, on the circumference side of box cupling body 1 also relative to be provided with two spanner grooves 2 caved inward,
Spanner groove 2 is along axial two inwalls of box cupling body 1 in the spigot surface 21 tilted axially outward, and spigot surface 21 serves conveniently to be pulled
The effect of hands inlay card, screw thread gathering sill 11 also extends through spanner groove 2 and arranges simultaneously.
As in figure 2 it is shown, be provided with the abrasionproof part 22 that wear resistant resin is made in spanner groove 2, abrasionproof part 22 is provided with rank
Ladder hole 32, has screw thread in shoulder hole 32, and the position corresponding with shoulder hole 32 at spanner groove 2 is formed to spanner groove 2 sunken inside
Screwed hole 31, by screwing in the fixtures such as bolt 33 successively in shoulder hole 32 and screwed hole 31, it is achieved that abrasionproof part 22 with pull
Fixing between hands groove 2, the outer surface of abrasionproof part 22 flushes with the circumference side of box cupling body 1, it is to avoid rub.
Extend as it is shown on figure 3, be provided with threadingly gathering sill 11 bearing of trend in the medial wall of screw thread gathering sill 11 simultaneously
Fixing groove 41, be provided with automatically cleaning elastomer block 42 in fixing groove 41, the outer surface of automatically cleaning elastomer block 42 guides with screw thread
The inwall of groove 11 flushes, and automatically cleaning elastomer block 42 is made up of wear resistant resin, and its surface-coated has Application No.
Self-cleaning epoxy resin anti-fog coating disclosed in the patent of invention of " 201010105606.3 ", serves good anti-fouling effect.
Claims (9)
1. an outer flow passage box cupling, including box cupling body (1), it is characterised in that: the circumference of described box cupling body (1) is towards interior
Depression forms screw thread gathering sill (11), and described screw thread gathering sill (11) is through to the two ends of box cupling body (1) length direction, described
The vertical sectional shape of box cupling body (1) is rounded, and the circumference side of described box cupling body (1) is curved.
Outer flow passage box cupling the most according to claim 1, it is characterised in that: the circumference side of described box cupling body (1) is along footpath
The spanner groove (2) being oppositely arranged is formed to depression.
Outer flow passage box cupling the most according to claim 2, it is characterised in that: the two side that described spanner groove (2) is axial is outside
It is formed slopely spigot surface (21).
Outer flow passage box cupling the most according to claim 2, it is characterised in that: described screw thread gathering sill (11) runs through spanner groove
(2) arrange.
Outer flow passage box cupling the most according to claim 2, it is characterised in that: it is provided with abrasionproof part in described spanner groove (2)
(22), the lateral surface of described abrasionproof part (22) flushes with the circumference side of box cupling body (1), and described screw thread gathering sill (11) is run through
Abrasionproof part (22) is arranged.
Outer flow passage box cupling the most according to claim 5, it is characterised in that: it is provided with screwed hole in described spanner groove (2)
(31), described abrasionproof part (22) being provided with the shoulder hole (32) matched with screwed hole (31), described shoulder hole sets in (32)
It is equipped with the fixture (33) coordinated with screwed hole (31).
Outer flow passage box cupling the most according to claim 1, it is characterised in that: the sidewall of described screw thread gathering sill (11) is arranged
There is fixing groove (41), in described fixing groove (41), be provided with automatically cleaning elastomer block (42).
Outer flow passage box cupling the most according to claim 7, it is characterised in that: described automatically cleaning elastomer block (42) guides with screw thread
The inwall of groove (11) flushes.
Outer flow passage box cupling the most according to claim 1, it is characterised in that: described box cupling body (1) is by high intensity, corrosion resistant
Erosion, rub resistance steel are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710231.6U CN205714010U (en) | 2016-06-30 | 2016-06-30 | Outer flow passage box cupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620710231.6U CN205714010U (en) | 2016-06-30 | 2016-06-30 | Outer flow passage box cupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205714010U true CN205714010U (en) | 2016-11-23 |
Family
ID=57327419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620710231.6U Active CN205714010U (en) | 2016-06-30 | 2016-06-30 | Outer flow passage box cupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205714010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481284A (en) * | 2016-11-29 | 2017-03-08 | 无锡金顶石油管材配件制造有限公司 | A kind of oil pipes box cupling |
-
2016
- 2016-06-30 CN CN201620710231.6U patent/CN205714010U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481284A (en) * | 2016-11-29 | 2017-03-08 | 无锡金顶石油管材配件制造有限公司 | A kind of oil pipes box cupling |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |